R5F61668RD50FPV Renesas Electronics America, R5F61668RD50FPV Datasheet - Page 1262

• Manufacturer Part Number: R5F61668RD50FPV
• Description: MCU 3V 1024K I-TEMP 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of R5F61668RD50FPV

• Core Processor: H8SX
• Core Size: 16/32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 92
• Program Memory Size: 1MB (1M x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 56K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Section 27 Clock Pulse Generator
Table 27.3 Crystal Resonator Characteristics
27.2.2
An external clock signal can be input as the examples in Figure 27.4. When the XTAL pin is left
open, make the parasitic capacitance less than 10 pF. When the counter clock is input to the XTAL
pin, put the external clock in high level during standby mode.
Rev. 2.00 Sep. 24, 2008 Page 1228 of 1468
REJ09B0412-0200
Frequency (MHz)
R
C
S
0
Max. (pF)
Max. (Ω)
External Clock Input
8
80
EXTAL
Figure 27.4 External Clock Input (Examples)
EXTAL
EXTAL
XTAL
XTAL
Figure 27.5 External Clock Input Timing
t
EXr
(b) Counter clock input on XTAL pin
12
60
t
EXH
(a) XTAL pin left open
Open
t
EXL
t
EXf
7
External clock input
External clock input
16
50
Vcc × 0.5
18
40